Sequential control method and system for intelligent substation protection device based on operation task

Abstract

The invention discloses a sequence control method of an intelligent substation protection device based on an operation task, which comprises the following steps: presetting corresponding operation task under each sequence control operation application scene and the sequence control operation corresponding to the operation task; selecting a sequential operation application scenario, automatically executing an operation task under the sequential operation application scenario and a sequential operation corresponding to the operation task; after the sequential control operation is finished, automatically obtaining the actual throw-back state of a group of soft platens corresponding to the protection device; comparing the actual throw-back state with the throw-back state of the group of soft platens of the preset target throw-back state of the protection device. According to the invention, the corresponding sequential control operation can be automatically executed based on the operation task, thereby completing the automatic execution of the automatic-back and the safety measures of the protection device; there is no need for operation or maintenance personnel to select the specific process of sequential control operation.

Description

technical field [0001] The invention relates to the technical field of online operation and maintenance of secondary equipment in smart substations, in particular to a sequential control method and system for smart substation protection devices based on operational tasks. Background technique [0002] In recent years, the development of communication network technology has created conditions for the application and promotion of smart substations, which has continuously improved the intelligence of substations. The smart substation replaces the hard wiring of the traditional substation with three layers and two networks, creating good technical conditions for the maintenance and status monitoring of relay protection equipment. [0003] The smart substation replaces the hard wiring of the traditional substation through optical fiber communication. The traditional secondary circuit wiring is expressed as an invisible abstract network message, which increases the workload of the...

AI Technical Summary

Problems solved by technology

At present, the return of secondary equipment and the implementation of safety measures still adopt the traditional operation ticket form, and manual return and check are carried out one by one. This method is inefficient and error-prone.

Moreover, the current substation sequence control operation is mainly aimed at the running state, and there are few studies on the operation sequence control of the protection device.